On Fri, Dec 9, 2011 at 5:36 AM, Marlen Caemmerer <[email protected]>wrote:
> Hello, > > I try to run maintenance/update.php. > It always fails with this error: > > Your system has a combination of PHP and libxml2 versions which is buggy > and can cause hidden data corruption in MediaWiki and other web apps. > Upgrade to PHP 5.2.9 or later and libxml2 2.7.3 or later! > ABORTING (see http://bugs.php.net/bug.php?id=45996). > > But my versions are quite new: > A number of folks on that PHP bug report have indicating seeing this bug even with newer versions of libxml2 etc; I don't know whether this is due to some deeper bug, or weird configurations where it didn't actually fully update or if some library version is embedded or what. :( Just to make sure it's failing the way we expect, try this test script: <?php class PhpXmlBugTester { private $parsedData = ''; public $ok = false; public function __construct() { $charData = '<b>c</b>'; $xml = '<a>' . htmlspecialchars( $charData ) . '</a>'; $parser = xml_parser_create(); xml_set_character_data_handler( $parser, array( $this, 'chardata' ) ); $parsedOk = xml_parse( $parser, $xml, true ); $this->ok = $parsedOk && ( $this->parsedData == $charData ); print "<pre>\n"; print "Got: " . htmlspecialchars($this->parsedData) . "\n"; print "Expected: " . htmlspecialchars($charData) . "\n"; print "</pre>\n"; } public function chardata( $parser, $data ) { $this->parsedData .= $data; } } $a = new PhpXmlBugTester(); ?> It should show: Got: <b>c</b> Expected: <b>c</b> if all is well. If it shows "Got: bcb" then I believe that's an example of this particular bug. If it says something else, that's interesting. :) -- brion _______________________________________________ MediaWiki-l mailing list [email protected] https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
